I think this is possibly a 14HP Crossley radiator cap.The Dia. is 1-7/8". It has a 20TPI thread.The bakelite part is excellent, the base has a nick to one edge, but it should still screw onto a radiator.I can post this and I accept PayPal.
-Mascot Qualification: Hood Mascot- - HISPANO SUIZA- - Franklin Mint-Material: Silver- Condition: Like new Contact Simon Nederveen 0031-25460911Shipment 18€ Europe