Maruman Halley Lighter - Silma Contract Edition

I have this lighter for a long time. It belongs to my grandfather, I don’t know where he acquired it.
I think it is a special edition of Halley vintage lighters produced by Maruman. It is carved that commemotarion for “Silma” contract which is signed between Hitachi and Mitsui Corporations in 1971.
I modeled by taking measures with calipers and draw them in Solidworks. Textures are made with substance painter. I have used octane render for render engine. Hope you like it.