Hydraulic-Press Brick Co. bricklayer line pin #1

Object/Artifact

National Building Arts Center

Marked-side of HPB bricklayer line pin #1

Small metal triangular tool with notches on both sides, stamped with "Hydraulic-Press Brick Co." and showing some rust or staining.

Name/Title

Hydraulic-Press Brick Co. bricklayer line pin #1

Description

Small triangular line pin with small divots along the edges, and marked with the company name on one side.

Use

This was likely used by employees of the Hydraulic-Press Brick Co., and line pins are used by bricklayers or stonemasons to hold masonry line in place for laying straight lines of brick.

Collection

Promotional object displays

Made/Created

Time Period

20th Century

Inscription/Signature/Marks

Type

Label

Location

Top face of line pin

Transcription

"Hydraulic-Press Brick Co."

Language

English

Material/Technique

Inscribed

Lexicon

Nomenclature 4.0

Nomenclature Primary Object Term

Pin, Line

Nomenclature Class

Masonry & Stoneworking T&E

Nomenclature Category

Category 04: Tools & Equipment for Materials

Getty AAT

Concept

metal

Dimensions

Dimension Description

Measurements taken from the front face of the pin, width taken from the widest point of the pin.

Height

2.5 cm

Width

11.3 cm

Parts

Count

Parts

Material

Metal

Color

Silver

Condition

Overall Condition

Good

Condition Type

Rust, Stains

Date Examined

Jul 17, 2026

Examined By

Elena Marshall

Surface

Surface condition is good, with only some black/gray staining or rust.

Research Notes

Web Links and URLs

https://www.krafttool.com/BL159?srsltid=AfmBOopxqvMxDWkTIXT6-F275defQsErZVYOd9qX-ctHK9kocbdost6L

Create Date

July 17, 2026

Update Date

July 18, 2026