A catalogue and price-list of drawing instruments (1892)
Alteneder, Theodore & sons, Philadelphia. [from old catalog] · [Philadelphia, T. Alteneder & sons] · leaf 66
637 637 Mahogany Dovetail Head, Maple Blade. 18 24 30 36 $0 75 o 90 1 00 1 25 42 1 5° 482 00 PHILADELPHIA. 61 Swivel T Squares. … 640 The T Square above illustrated is an instrument which we can recommend.It has two clamping screws, one at the pivot in the usual way and an addi-tional one near the short end of the blade which works in a circular slotconcentric with the pivot. The swivels are well made and the wood…
Drawing instruments
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