The Lenco heavy platters were produced in the INCA INJECTA factory in Teufenthal (Aargau-Switzerland) and were made of Zamac ZnAL4 also called Zamac3 or Z400 (German norms).
The platter top view:
- Depressed area
- Brass bushing
- Grooves (not on all platters)
- Ring
- Balancing holes (not on L59/70 & GL88/99)
- Bevel
The platter bottom view:
- Idlerwheel's track
- Brass bushing (here with the brass extension for L78's autostop device compatibility)
- Bracing
- Ring
- Balancing holes (not on L59/70 & GL88/99)
- Lip