Here is a Strasser Marigaux oboe serial number 5010 (1970s era I think). A very good maker. The oboe is full conservatoire system, without LH F (as was common at the time of manufacture). There is no English no thumb plate, although this can be added, which would make it a dual system instrument. The bell has some marks from a ligature, so that I guess the instrument was used in a marching band at some point, and the oboe is priced accordingly. It comes with a battered but original case, and plays well, although some of the pads are worn and it would benefit from a service to get it into top condition. I'm reluctantly selling some of my collection due to downsizing to a smaller house. Any questions, please ask.
eBay