Sample tooooooooo small

The sample is too small indeed...
but it looks like Peninsular Script Three from OPTI
As it's noted on the OPTI Archive page bellow, the original font was Penhand Three:
http://opti.netii.net/fonts-p/index.htm

I do not know how you found it, but it sure looks like it to me.

I applied 2 times the magnification tool of Find my Font (= a total magnification x9) and carefully selected /B /E /D & /H (i.e. the biggest and more distinct letters)
:-)

How can I purchase this font. I cannot find it anywhere.

OPTI is out of business = Click on Penisular Script Three link in Favos answer above.

Using an "orphan font" like the ones from the defunct OTPI foundry raises legal issues, even where, as in the case of this one, the font seems to be an original digitization by OPTI rather than a pirated clone of digital work by another fontmaker. Probably no problem for personal use but for anything commercial I recommend consulting a lawyer.
DISCLAIMER: I am not a lawyer. This merely a layman's opinion and does not constitute legal advice.
Don

Thank you for all of your help. It is so appreciated.

Castcraft/OPTI started out as a metal type business in Chicago - they according to them - made digital fonts from the Castcraft metal types they originally sold. The whole question of orphan fonts from defunct foundries is interesting.