This is another item from my giant collection of "Burwood Mfg." inventory. These Bases  were used in the clock making department.

I classed them as "nos"(new old stock) they were never used,they are in great useable condition,any slight rub marks are from years of stacking and storage in bulk.No dents,no rust.

Take a peek at the pics. and make your own judgement.

These are brass plated metal, NOT solid brass.

These bases are used with any 4 1/2" to 4 5/8" dome.

The c/l to c/l of the larger holes is 84mm.
the c/l to c/l of the large to smaller hole is 43.5mm
The hole diameters are 9.7mm and 6.3 respectfully.

THE BASE IS 1 1" THICKNESS.
I hope this helps.
Jerry

I DO  HAVE DOMES FOR THEM LISTED IN MY EBAY STORE

THESE BASES ARE FOR 4 5/8"domes and the total dia. is 6".

I will ship first class mail.

Thanks for looking!

selkirksiegy