More info on this Dutch Jewelry case please

Hi , i have here a dutch jewelers case , quite nice & i estimate from 50s or 60s.
Logo photo is inside the lid. The interesting thing is the latch plate , both sides are stamped with backward R next to a letter G. If anyone can tell me more about the logo & maker plus what backward R next to G means i would appreciate


They still exist! Send them an email info@juweliervanwillegen.nl

Hi Dannealle , i contacted them but its not that Van Willigan , different jeweller , different town. They were not able to help me further on my question of identity.
Cheers
Errol