misplaced.
EDIT: Sorry, this was the correct thread after all.
I was given a Duro magneto set in the same roll. We're most of them put into the one type of roll?
As far as I know, Duro-Chrome ignition wrench sets (No. 1709, with 9 wrenches; No. 1711, with 9 wrenches plus the pliers and screwdriver) have been found in two (2) distinct types of roll-ups: leatherette, and oilcloth.
The leatherette roll-up is shown and described in catalogs (1935, 1939) as "two-tone". The “tones” are not named, but it has been alternately described as red, ruddy brown, or maroon. These have a fabric backing (to which the leatherette substance is impregnated) that is also red, ruddy brown, or maroon, but lighter in shade. These originally include a triangular cloth tag, sewn-in, with the Duro-Chrome name on it. Don posted a wonderful example of one without the name tag, and he may have one with, too.
The oilcloth roll-ups are not shown in any catalog we have access to. They are black. They usually have a white backing (to which the hard "oil" substance is impregnated), although black backings have also been seen. Some of them are substantially sewn, and some crudely (e.g., no edging), suggesting different mfgrs. I have never seen one of these with the Duro-Chrome tag. My conjecture is they were a secondary and perhaps even a replacement source, probably during WWII.
The oilcloth roll-ups can be extremely messy from age, with the oil re-melting, and the folds often stuck together like tar. I have had several. I can search for some examples later, unless Don has photos handier.
I could be wrong, but I have never seen an original black leatherette roll-up, or, conversely, an original red, ruddy brown, or maroon oilcloth roll-up.
What model numbers are on your wrenches?
Prewar: 1761 through 1769 (ostensibly, I have never personally seen any)
Early war: E61 through E69
Late war: G61 through G69
TBD: 861 through 869