Rare Antique Block Engraved ALLCOCK Co Aerial Centrepin

In good original condition a very scarce early Allcocks Block Engraved Aerial 3 1/2” diameter with BP line guide, early copper calliper spring check mechanism, ventialated front flange with ebonite rear flange, 12 spokes with tensioner. Block engraved with makers details, correct brass foot not altered or shortened. Twin Ivorine handles, spins nicely, overall a very rare original collectible Centrepin.