According to Scottish tartan Authority at

http://www.tartansauthority.com/web/site/cart2.asp

the designer and source are unknown, but its date of origin is pre-1960. Perhaps some one who is a member of STA can access the restricted part of their website that has more information.

Tartans of Scotland has 2:

1)http://www.tartans.scotland.net/tart...m?tartan_id=84

This sett appears in Paton's collection. The samples are undated but the collection is known to have been put together around the 1830's, with some additions during the Victorian period.
The source of tartan 1073 was: Paton's collection

2)http://www.tartans.scotland.net/tart...tartan_id=2056

Pattern seen at open meeting of Fort Augustus Scottish Womens Rural Institute.

Neither of the latter resemble the first very much.