Solved -PJ322- Jappic Cyclecar 1925

[Paul Jaray]

Know what it is?

Please, respond below and share your knowledge of what this is.
As always, detailed answers are greatly appreciated by all. 
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Also, please be sure to check out our other puzzles, and, please post a puzzle of your own if you'd like - the more, the merrier.

Thanks!

[Paul Jaray]

To the active Experts!

[white12]

This is a Jappic by H M Walter, engine JAP 1cyl 350cc.

[Paul Jaray]

 

[dzima1985]

added more photos -

[Allan L]

Yes, that last one is the re-creation which is underway at present.
A fine bit of vintage construction which is hoped to be running this year.

[grobmotorix]

Another rare photo:

[sichel]

There is some work to be done before the launch. Who was the designer? Who built the body? Which engines were used? When was it? All this informations for one point.

[Lavrakas]

Japic designed by HM Walters with body by Jarvis. 344cc JAP engine. Brooklands 1925.

[Lavrakas]

Jappic (two pps!)

[sichel]

That's what I call a quick and correct answer!! But I asked for engines (plural). Please name the alternatives. Locked for Lavrakas

[Lavrakas]

Replaced the following year with a 495cc JAP engine.

[sichel]

Yes, that's it. One more point for you and very welcome to the experts. I am curious about your puzzles. 

[Wendax]

Merged

Lavrakas, congratulations to expert status. No more rookie puzzles for you. We are looking forward to see some of your own puzzles. 

[sichel]

My source mentions M.H. Walthers as designer. So I didn't find the 2010 puzzle in the search..

[Lavrakas]

Thank you very much!