Clog
Pitons & Bongs

Denny Moorehouse and Shirley Smith formed Clogwyn Climbing Gear and started producing pitons in 1966. They soon expanded production to includes chocks and other gear. "Clogwyn Climbing Gear" was too long stamp on most of their produced, so they shortened the logo to "Clog."

Micro Pegs

Set 319-320: Clog Micro Pegs (a.k.a. Razor Blades)

Set 319-320: Clog Micro Pegs (a.k.a. Razor Blades)

↑ Set 319-320: Clog Micro Pegs (a.k.a. Razor Blades)

Made in Wales [ca. 1972].

319: Clog Straight Micro Peg (a.k.a. Razor Blade)

319: Clog Straight Micro Peg (a.k.a. Razor Blade)

319: Clog Straight Micro Peg (a.k.a. Razor Blade)

↑ 319: Clog Straight Micro Peg (a.k.a. Razor Blade)

Made in Wales [ca. 1972].
Weight: 12 g.
Overall Length: 37 mm.
Effective size: 18x21x2 mm.
One side stamped "CLOG" inside an ellipse.

320: Clog Bent Micro Peg (a.k.a. Razor Blade)

320: Clog Bent Micro Peg (a.k.a. Razor Blade)

320: Clog Bent Micro Peg (a.k.a. Razor Blade)

↑ 320: Clog Bent Micro Peg (a.k.a. Razor Blade)

Made in Wales [ca. 1972].
Weight: 12 g.
Overall Length: 37 mm.
Effective size: 18x21x2 mm.
Bottom stamped "CLOG" inside an ellipse.

Horizontals

Set 158-162: Clog King Pins

Set 158-162: Clog King Pins

↑ Set 158-162: Clog King Pins

Made in Wales [1970s].
#1, #2, #6(2), #7

158: Clog King Pin; #1

158: Clog King Pin; #1

158: Clog King Pin; #1

158: Clog King Pin; #1

↑ 158: Clog King Pin; #1

Made in Wales [1970s].
Weight: 67 g.
Overall Length: 92 mm.
Effective size: 54x17x6 mm.
Raiswd "CLOG" on one side and "WALES on the other, near anvil.
From Miles Bradshaw, 2024.

159: Clog King Pin; #2

159: Clog King Pin; #2

159: Clog King Pin; #2

159: Clog King Pin; #2

↑ 159: Clog King Pin; #2

Made in Wales [1970s].
Weight: 92 g.
Overall Length: 99 mm.
Effective size: 60x17x9 mm.
Raiswd "CLOG" on one side and "WALES on the other, near anvil.
From Miles Bradshaw, 2024.

160: Clog King Pin; #6

160: Clog King Pin; #6

160: Clog King Pin; #6

160: Clog King Pin; #6

↑ 160: Clog King Pin; #6

Made in Wales [1970s].
Weight: 105 g.
Overall Length: 113 mm.
Effective size: 83x17x9 mm.
More blade taper than #161.
Raiswd "CLOG" on one side and "WALES on the other, near anvil.
From Miles Bradshaw, 2024.

161: Clog King Pin; #6

161: Clog King Pin; #6

161: Clog King Pin; #6

161: Clog King Pin; #6

↑ 161: Clog King Pin; #6

Made in Wales [1970s].
Weight: 113 g.
Overall Length: 123 mm.
Effective size: 85x17x9 mm.
Less blade taper than #160.
Raiswd "CLOG" on one side and "WALES on the other, near anvil.
From Miles Bradshaw, 2024.

162: Clog King Pin; #7

162: Clog King Pin; #7

162: Clog King Pin; #7

162: Clog King Pin; #7

↑ 162: Clog King Pin; #7

Made in Wales [1970s].
Weight: 90 g.
Overall Length: 133 mm.
Effective size: 95x21x5 mm.
Raiswd "CLOG" on one side and "WALES on the other, near anvil.
From Miles Bradshaw, 2024.

Offsets

Set 299-300: Clog Offsets

Set 299-300: Clog Offsets

↑ Set 299-300: Clog Offsets

Made in Wales [1970s].

299: Clog Offset; Short Razor

299: Clog Offset; Short Razor

299: Clog Offset; Short Razor

↑ 299: Clog Offset; Short Razor

Made in Wales [1970s].
Weight: 53 g.
Overall Length: 83 mm.
Effective size: 40x2 mm.
Base near anvil stamped with "CLOG" inside an ellipse.
From Miles Bradshaw, 2025.

300: Clog Offset; Short Thin

300: Clog Offset; Short Thin

300: Clog Offset; Short Thin

↑ 300: Clog Offset; Short Thin

Made in Wales [1970s].
Weight: 68 g.
Overall Length: 85 mm.
Effective size: 45x3 mm.
Base stamped "CLOG" near anvil.
From Miles Bradshaw, 2025.

Angles

Set 163-165: Clog Angles

Set 163-165: Clog Angles

↑ Set 163-165: Clog Angles

Made in Wales [1970s].
#1–#3

163: Clog Angle; #1

163: Clog Angle; #1

163: Clog Angle; #1

163: Clog Angle; #1

↑ 163: Clog Angle; #1

Made in Wales [1970s].
Weight: 57 g.
Overall Length: 105 mm.
Effective size: 71x13 mm.
Blade stamped with "CLOG.".
From Miles Bradshaw, 2024.

164: Clog Angle; 2

164: Clog Angle; 2

164: Clog Angle; 2

164: Clog Angle; 2

↑ 164: Clog Angle; 2

Made in Wales [1970s].
Weight: 82 g.
Overall Length: 121 mm.
Effective size: 85x15 mm.
Blade stamped with "CLOG.".
From Miles Bradshaw, 2024.

165: Clog Angle; #3

165: Clog Angle; #3

165: Clog Angle; #3

165: Clog Angle; #3

↑ 165: Clog Angle; #3

Made in Wales [1970s].
Weight: 91 g.
Overall Length: 143 mm.
Effective size: 105x20 mm.
Blade stamped with "CLOG" and "WALES.".
From Miles Bradshaw, 2024.

Bongs

Set 056-058: Clog Bongs

Set 056-058: Clog Bongs

↑ Set 056-058: Clog Bongs

Made in Wales [1960s/1970s].
Effective size: 120x50 mm.

056: Clog Bong

056: Clog Bong

056: Clog Bong

056: Clog Bong

↑ 056: Clog Bong

Made in Wales [1960s/1970s].
Weight: 257 g.
Overall Length: 152 mm.
Effective size: 120x50 mm.
No markings

057: Clog Bong

057: Clog Bong

057: Clog Bong

057: Clog Bong

↑ 057: Clog Bong

Made in Wales [1960s/1970s].
Weight: 247 g.
Overall Length: 153 mm.
Effective size: 120x50 mm.
Stamped "CLOG."

058: Clog Bong

058: Clog Bong

058: Clog Bong

058: Clog Bong

↑ 058: Clog Bong

Made in Wales [1960s/1970s].
Weight: 242 g.
Overall Length: 154 mm.
Effective size: 120x50 mm.
Stamped "CLOG" and "WALES."

615: Clog Bong

615: Clog Bong

615: Clog Bong

615: Clog Bong

↑ 615: Clog Bong

Made in Wales [1960s/1970s].
Weight: 237 g.
Overall Length: 152 mm.
Effective size: 120x50 mm.
Two "rubbery" inserts added for an unknown reason. One is inside along the spine, the other inside near the rivet.
Chrome–plated alloy steel.
Stamped on one side with "CLOG" inside an ellipse.
Chrome–plating was probably added by a previous owner.

Set 054-055: Clog Bongs

Set 054-055: Clog Bongs

↑ Set 054-055: Clog Bongs

Made in Wales [1960s/1970s].
Effective size: 120x65 mm.

054: Clog Bong

054: Clog Bong

054: Clog Bong

054: Clog Bong

↑ 054: Clog Bong

Made in Wales [1960s/1970s].
Weight: 303 g.
Overall Length: 151 mm.
Effective size: 120x65 mm.
No markings

055: Clog Bong

055: Clog Bong

055: Clog Bong

055: Clog Bong

↑ 055: Clog Bong

Made in Wales [1960s/1970s].
Weight: 318 g.
Overall Length: 153 mm.
Effective size: 120x65 mm.
Stamped "CLOG" and "WALES."