Hi @alpoter,
Welcome to the Dyson Community!
This does appear to be a genuine Dyson machine - the flowlines in the plastic are a normal part of the injection molding process, and nothing to be concerned about. However as it wasn’t purchased from an authorised Dyson retailer, we wouldn’t be able to confirm if this particular variant was originally intended to be sold in your country, or manufactured for a different market.
If you have any concerns, you're welcome to speak directly to our Dyson Customer Care experts in your region for further advice. Please visit Dyson.com and click the round purple button to launch the Dyson Digital Assistant. Then click the agent icon in the bottom left corner of the chat window to start a conversation with our Customer Care team.
Hope this helps!