Hmm, to be honest, I don't know if it will fit a yashica A. They might have changed the size over time. Maybe someone else on here can help? It is a bay one size that has worked great with a yashicamat 124g.
As far as pricing, I am going to stay at $30 shipped for now. I have had the ad up less than 12 hours and have already dropped the price 25%.
Thanks for looking. I am happy to answer any more questions.
My Yashica A doesn't have a bayonet fitting on the lens for hood or filters. It looks like it would require a slip on type. I don't know whether there were variations or not. If smiling gecko's is like mine it will just have a smooth round barrel on the taking lens.