Gerry Mountaineering Triangular Steel Carabiner-marked RCS

Object/Artifact

-

Yosemite Climbing Museum

Name/Title

Gerry Mountaineering Triangular Steel Carabiner-marked RCS

Entry/Object ID

2025.2.123

Description

Triangular Steel Carabiner marked RCS made by Gerry Mountaineering

Use

Carabiner - used to rack pitons on a sling as well as for anchors where multiple ropes were involved

Context

Used by Jerry Gallwas on First Ascent of NW Face of Half Dome in 1957

Collection

Yosemite Climbing Museum Permanent Collection

Category

Carabiners, Climbing Hardware

Acquisition

Accession

2025.2

Notes

acquired 2020

Made/Created

Manufacturer

Gerry Mountaineering Equipment Co.

Date made

circa 1955

Inscription/Signature/Marks

Type

stamped RCS, stamped G for Gerry Mountaineering, two file marks on gate signifying owned by Jerry Gallwas

Dimensions

Dimension Description

entire carabiner

Height

3/8 in

Width

2-1/2 in

Length

4-1/8 in

Material

steel

Location

Location

Display Case

Exhibit Case 06 1/2

Date

December 30, 2025

Provenance

Provenance Detail

Jerry Gallwas

Notes

acquired 2020

Create Date

December 27, 2025

Update Date

December 31, 2025