Nepal / Indian States - An Early Stationery Postal Card

Can anyone help me to identify more properly this card?

In Asher catalog it is not described in details, and I don't have other references for Indian States stationery.

From the internet resources I have found that it is a Horse type 3., which will makes a catalog number 8, but not sure a, b.. or some other subtype.

I can make better scans if this photo is insufficient for a more detailed expertize...

Some nice pics here… looks like an 8a..
https://www.exponate-online.de/e_ex....asp?a=1&e=8

Thank you, perf12! I have seen that link before, and also thought that it must be 8 a or b... however, I have clicked on the arrow right on that link, and there is another exhibition of those issues... and another click - another one... all look similar, but they are all different... so many time, love and money, of course... literature... and talent, really... to make such a collections and to represent them in that way. Thumbs up, Johannes Bornmann!

In your cover the 2 lines are parallel_________________

I have the Frank Vignola's Nepal stationery exhibit on my website here:
http://www.rfrajola.com/vignolaC/VignolaC.pdf

may be of use

Thanks for hints, perf12 and Richard Frajola!

So, I have sent an e-mail to Mr. Johannes Bornmann (autor of the exhibit) personally, and he has been so kind to give me an extended reply... quotes from his reply...

many thanks to Mr. Bornmann!!

" I am pretty sure it is No 8b. The differences between 8a and 8b are small - see the scan enclosed. I put the text of a 8a card onto your scan. You can compare and find your own solution."

Fascinating post, enjoyed reading.