Assuming the Weltblick description is similar to that of the Polarex and Unitron:
3″ (75mm), FL 1200mm Equatorial Refractor: complete with Equatorial mounting and slow motion controls for both declination and R.A., setting circles and veniers, tripod, 8X-30mm viewfinder, standard rack and pinion focusing, 5 eyepieces, choice of UNIHEX or star diagonal and erecting prism system, sun projecting screen apparatus, sunglass, pocket eyepiece case, dewcap, dustcap, tripod shelf, wooden cabinets
These first photos of a Model 131 are courtesy of Xavier Debeerst
This second Weltblick Model 131 is owned by Holger Kramer. It is equipped with a Unihex and an electric motor. When he acquired it from a friend it was in bad shape, requiring cleaning, lens alignment, and work on the mount. The scope is being used quite frequently for astrophotography. Some of his photos are included.