Cattleya Bow Bells (C. Edithinae x C. Suzanne Hye) was originated and registered by British orchid company Black & Glory in 1945. 

Looks like this particular clone Cattleya Bow Bells 'July' newer been awarded (however it listed as a division).

This cross has three species in the background: C. mossiae, C. gaskelliana, C. trianae.

History of this plant has been described in great article 'The Bow Bell Revolusion' by Arthur Chadwick in 2015.  

Previous Awards:

There are 50 AOS awards for this cross, all awards dated from 1945 to 1965. Except last one - Cattleya Bow Bells 'White Sands' AM/AOS (86 pts) awarded in Sept 9, 2017 (Exhibitor - Shogun Hawaii - Matthias Seelis)

Also, you can find 2 AOC (Australia) awards from 1968.

Description:

The candidate plant has 3 flowers on 2 staked inflorescences up to 18 cm tall. Plant is 46 cm wide and 26 cm tall (including inflorescences and flowers). Plant in 16 cm plastic pot.

Flower Measurements:

NS H - 15.1 cm;                   NS V - 14.9 cm;

Dorsal Sep. W - 2.5 cm;    Dorsal Sep. L - 7.9 cm;

Petal W - 7.0 cm;               Petals L - 7.6 cm;

Lat/Sepal W - 2.3 cm;       Lat/Sepal L - 7.3 cm;

Lip/Pouch W - 5.5 cm;     Lip/Pouch L - 8.7 cm.

Exhibitor - Inna Kvitnitsky, NJ