Interesting things about catalog.

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I recently found a victorinox catalog from the 1950s (based on the explanation above on SAKWiki).The interesting thing about this catalog is that it has the name of the importer printed on it.I read the catalogs of SAKWiki in the 50-70 years, and I found that there are five catalogs in the same format，I think they are made by the same company.The name of the company is ALPINE HOUSE（as shown in the picture）.Interestingly, the price on my catalog is the lowest.You can compare, they're only 60% of the 1950's catalog on SAKWiki,so will my catalog be the earliest one?In addition, does anyone know about the ALPINE HOUSE company?

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Here are the other five catalogs on SAKWiki. I compare campers' prices, and the price trend is like this:4.05~6.75~8.8~10

https://www.sakwiki.com/tiki-browse_gallery.php?galleryId=87
https://www.sakwiki.com/tiki-browse_gallery.php?galleryId=88
https://www.sakwiki.com/tiki-browse_gallery.php?galleryId=89
https://www.sakwiki.com/tiki-browse_gallery.php?galleryId=90
https://www.sakwiki.com/tiki-browse_gallery.php?galleryId=91