Lots of free catalogs exist for identification help. Formats and quality levels vary. A basic suggestion is to make and save your own library of files, pdf or jpg etc., to guard against future broken links and zombie site dysfunction. There are also examples of old advertisements, old and new magazine articles, and retail catalogs, to keep an eye out for.
Translating Japanese can be done with the basic picture or screengrab to translation trick using: https://translate.google.com/?sl=ja&tl=en&op=images. Pics of poor quality can be improved for better translation success using various editor tools, but the simplest is: open in MS Photos > Edit > Adjustment > use the Sharpness slider > Save.
Links under the badge name headings below are sorted alphabetically. Note of course that dates after 1986 are not Matsumoku, in some of the links. You might also see some anomalies from one site to another with the same catalog being shown with different dates. The Vintage Japan Guitars site is probably the most accurate overall.
Aria & Aria Pro II
http://web.archive.org/web/20101212050830/http:/ariausa.com/Archive/catalogs.html
https://catalogism.com/page/2/?s=Aria
https://guitar-catalog.com/#ARIAPROII
https://japaneseguitar.ninja-web.net/guitar2/1980-aria-pro2.html
https://matsumoku.org/category/aria-electric-catalogs/
https://matsumoku.org/category/ariaproiielectriccats/
https://music-inside.ru/catalogs/aria-pro-2
https://vintagejapanguitars.com/aria-aria-pro-ii-guitar-catalogues/
https://www.scribd.com/document/355556158/Aria-Pro-II-Catalog-1977-1#
https://www.tokaiforum.com/threads/1979-aria-pro-ii-electric-guitars-full-line-up-catalog.32414/
https://www.tokaiforum.com/threads/1980-aria-pro-ii-catalog.31048/
https://www.tokaiforum.com/threads/1980-aria-pro-ii-catalog-ishibashi.32412/
Westone
http://www.westone.info/catalogues.html
https://vintagejapanguitars.com/westone-guitar-catalogues/
https://westoneguitars.net/scans-1/catalogues-price-lists/
Epiphone
http://www.vintageguitarandbass.com/epiphone/catalogues/1982_index.php
https://guitar-compare.com/catalogs/epiphone-catalogs/#Catalogs
https://vintagejapanguitars.com/epiphone-guitar-catalogues/
https://www.vintageguitarandbass.com/epiphone/catalogues/1971_index.php
Univox
http://www.vintageunivox.com/catalogs/1966promo.html
http://www.vintageunivox.com/catalogs/1968catalog.html
Vantage
https://matsumoku.org/category/vantcat/
https://vintagejapanguitars.com/vantage-guitar-catalogues/
Westbury
https://www.facebook.com/groups/58952112896/permalink/10158316010762897/
https://www.facebook.com/groups/58952112896/posts/10158290638667897/
https://www.facebook.com/groups/58952112896/posts/10158332735982897/
https://www.facebook.com/groups/58952112896/posts/10158332732352897/
https://www.facebook.com/groups/58952112896/posts/10158332733027897/
https://www.facebook.com/groups/58952112896/posts/10158332734582897/
Others
Electra (only a few models are Matsumoku) & Electra Westone
http://www.rivercityamps.com/electrapage/index.php?d=12&m=07&y=09&category=2
https://vintagejapanguitars.com/electra-guitar-catalogues/
Fantom
https://guitar-catalog.com/guitar-and-amp/fantom/197x/jp_index.html
https://vintagejapanguitars.com/fantom-guitar-catalogues/
Greco (includes a couple Aria models, otherwise Greco models are Fujigen)
https://guitar-catalog.com/guitar-and-amp/greco/1972/jp_index.html
Vox
https://www.voxshowroom.com/catalogs/1982_p1.html
https://www.voxshowroom.com/catalogs/wsbass.html
Westminster
https://guitar-catalog.com/guitar-and-amp/westminster/1976/jp_index.html
https://vintagejapanguitars.com/westminster-guitar-catalogues/