Thanks to Paul Felski for this information and pictures
Nano Planetary 6mm DC Gearmotor - 21mm Type
Precision Microdrives Gearmotor Web Page
model number: 206-108
28RPM at 3V , Run them at 1.5V to get 12-14 RPM
Available from stock in quantities of one or more.
Order directly online in multiple currencies.
Shipping: Fully tracked shipping available with express courierStock parts are dispatched from London, UK.
For urgent, time critical deliveries please select an express courier service when completing your order at checkout.
Delivery options for international orders are automatically determined based on your order weight, value and destination.