Name: Vintage MICROM Heidelberg Precision Knife-Edge Straightedge Set – 160 & 220 mm – West Germany
Brand: MICROM
Price: 350.00 EUR
Availability: InStock

Two vintage MICROM precision knife-edge straightedges resting diagonally across an open wooden storage case.

Vintage MICROM Heidelberg Precision Knife-Edge Straightedge Set – 160 & 220 mm – West Germany

€350,00 EUR

A distinctive combination for collectors of classic German precision instruments: two MICROM knife-edge straightedges measuring 160 and 220 mm, offered with a wooden storage case bearing the MICROM Heidelberg label.

These instruments combine understated design with a refined technical purpose. Their satin-finished metal surfaces, MICROM markings, and “West-Germany” identification give the set its unmistakable industrial character. An appealing addition to a precision-tool collection, an instrument maker’s workshop, or a display of historic engineering equipment.

Two Lengths, One Distinctive Set

The 160 mm (approximately 6.30 in) straightedge fits inside the accompanying wooden case. The longer 220 mm (approximately 8.66 in) instrument offers a greater inspection span and will be individually protected outside the case for shipping.

The pairing brings together a compact instrument for smaller surfaces and a longer example for larger components, making this an interesting set for collectors and enthusiasts of traditional precision tools.

The Light-Gap Method

A knife-edge straightedge is not an ordinary ruler. Its fine inspection edge is placed against a surface and viewed against a light source. A visible gap can reveal deviations from flatness.

This traditional inspection principle belongs to the world of precision mechanics, instrument making, and restoration. It recalls a workshop tradition in which careful observation and finely finished tools played a central role. The measurement accuracy of these particular instruments has not been established by a calibration certificate.

West German Industrial Heritage

The “West-Germany” marking places these instruments in the historical context of West German instrument manufacturing. Together with the labeled wooden case, they form a characterful combination of technical purpose and collectible appeal.

Displayed in a workshop, collector’s cabinet, or office, the set offers a tangible connection to the history of precision engineering.

Condition

According to the seller, the set is in like-new condition, with sharp inspection edges and no damage, burrs, or corrosion. Not calibrated. The photographs show the actual items offered and form part of the condition description.