This is a Beautiful Vintage Aiken Lambert Gold Filled Pen Cap. This is just the pen cap. The cap has some light surface scratches and wear. It has a very small indentation on the very top. Overall, the cosmetic condition is good for its age. The pen clip reads “PATD” “SEPT 25 05” “A.L.Co” “ Gold Filled”. Please see pictures for details. 

Cap measures: 
Length - 2 3/16”
Lip Opening - 7/16”