Well I'm confused now. Mark X was the model name I was trying to think of. It was the low end of InterArms line. I'm talking 1980s. Was the Whitworth marked made in England on a
Czech action! And how about the Parker Hale they had in their line at the time?
Interarms used the Mark X name for their line of commercial Mauser rifles. There were the
* Viscount (checkered varnished European walnut, adjustable trigger, black plastic buttplate, pistol grip cap and forend tip (earlier ones had white line spacers), sling swivel studs)
* a low-frills model (can't remember the model name) without the plastic nose cap and a simple two-stage trigger.
* Continental (full-length Mannlicher stock with European hogback comb, adjustable trigger, steel nose cap and grip cap)
* Alaskan (heavy magnums, 375 H&H, 458, with adjustable trigger, checkered walnut with low-gloss finish)
* Whitworth (later production rifles with reddish stain European walnut, checkered, low gloss finish, rubber recoil pad, plastic tip and grip cap, some had a piece of walnut laminated into the center of the stock to reduce splitting in heavy calibers)
* the Mini-Mauser was introduced in the mid 1980s, it was also made by Zastava and was named "mini-Mauser" to tie it into their line of Mauser rifles.
All Interarms Mauser actions were made in Yugoslavia at the Yugoslavian Craguyevac armory. The confusion about CZ comes from the Zastava Cragujevac logo ZC (Zastave Craguyevac = Red Banner) . Before the 1970s, CZ was imported under the BRNO name.
Interarms marked their rifles Manchester England because they used to bring barrelled actions into Manchester (a duty-free port) because labor was cheaper and import duties from England would be even lower. Interarms continued this until the 1980s.
IIRC, Parker Hale rifles were imported by Interarms as well, they were made by BSA. Early rifles were Mauser 98s, later they replaced the 98 with a proprietary action. Glossy finish, skip-line checkering to compare to Weatherby rifles. They were really a pretty crappy action.