The writing instruments date from the time before reunification (before 1989), recognisable by the marking 'W.-Germany'. They are a Meisterstück 144 Solitaire Silver grain guilloché (fountain pen or 147), a Meisterstück 161 Le Grand ballpoint and the matching Traveller case. The cases are: red = Florence, black with cartridge holder = Traveller, black small = Sienna. On gold-plated parts two variants are distinguished — Vermeil (gilded silver, hallmark '925') or gold-plated brass (without hallmark); if the 925 hallmark is missing and only 'Germany' stands on the pencil, it is brass vermeil. For value determination, consultation of the corresponding product pages on fountainpen.de and comparison of concluded eBay auctions were recommended.
Related pages on fountainpen.de:
• Montblanc Meisterstück 144 (Classique predecessor): https://www.fountainpen.de/c-montblanc-meisterstueck-144-en.htm