Check the listing for details. RSF Elektronik A-5121 Tarsdorf 93. Austria. Linear Scale/Linear Encoder.. Condition: Used. Listed at 189.00 USD. RSF Elektronik A-5121 Tarsdorf 93. Austria. Linear Scale/Linear Encoder. Part Number 83553203. MSA 554. Intervall 0,02 mm. Weight 0,7 kilograms approximately. Vintage Silver and Gold Objects displayed are not polished professionally or disturbed in any way in order to keep their patina/original condition. However sanitizing is applied and a slight cloth polishing is usually applied to stronger oxidation spots that might cause a problem to buyers.Lighting in my pictures is uneven and reflections and shadows might appear. I try to photograph in natural light to get as close to the original colors and shapes as possible. Photographs are taken in order to highlight problems and not hide them. If you have an issues with a particular image or need further explanations please do not hesitate to contact us. Shipments are made within one or two working days after payment and are always tracked, usually through ELTA, the Greek Postal State Service. If you need a faster service then please contact us for the extra cost. DHL EXPRESS is then used for faster tracked deliveries.We are located in the center of Athens, our TAX number is 033873792, a receipt will be provided for tax services and our contact phone is 00306944324572.