Here's a Scarce U-1929A porcelain Sinclair Aitken Patent insulator from the UK. Incuse marked "Patent" on the crown (has the curly letter "t". Comes with the original hard to find threaded inner skirt in the form of a porcelain pin [id=686164670], which are usually missing. Measures 3 1/2" wide by 4 1/4" tall.

Excellent condition with only 2 very tiny tic marks, a tiny match head flake and some inner thread nibbling.

First email gets this scarce insulator (see my CJOW article for more info) for the reduced price of only $200 plus 11 shipping. Thanks!