Used to sharpen razors and knives, the wire frames hold two glass marbles together, with the razor drawn between the marbles. The marbles are common machine made marbles, usually clearies. Made in the 1940s in the USA. From the collection of Matt Riley.
3 comments:
Was this an American invention? What a great sub-category to collect!!
(Just what I need.....)😜
Was this an American invention? What a great sub-category to collect!!
(Just what I need.....)😜
I use a snap knife, a good one from home depot. Use the snap knife for all the straight cuts. Use the xacto for tight corners. Cut tangents around convex curves, sand to round. See the last picture.
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