hatrabbit wrote:I have a brass Yale padlock that came from an estate sale without a key. I'll try to attach a pic of the keyway shape here. I couldn't find a match in the key blank directory... where should I turn next? The lock looks to me like it's a 7300 series.

Is it full size plug or smaller cabinet size plug? British Yale used profile that looks like this for cupboard, till, etc locks and some extruded brass padlocks.