Yup, the Victa 'store brand' classification denoted low arch/entry level models, sold by Victa dealers and some retail chains under the Mayfair and Barclay brands.
Victa would also rebrand them to customer requirements, for large customers who placed big orders. Mitre 10, McEwans, Myer etc. all had their own 'house brand' Victas.
As did the OPE industry's main buying group through the 1970's and 80's, the MSAA; the 'MSAA Craftsman' brand name was used on mowers made by all of the major local push mower manufacturers.