The attribution is an argument, not a certainty
Auction catalog entries may use phrases such as “attributed to,” “circa,” “style of,” or “probably.” These terms communicate different degrees of confidence. Record what evidence accompanies an attribution, what parts are descriptive, and what an auction house says is an opinion. Ask for additional photographs and literature references before drawing conclusions.
Start a document checklist
A useful lot description includes measurements, materials, visible repairs, comparable objects, past exhibitions, prior inventory numbers and a dated ownership history when known. A vague claim of “old European collection” is not a substitute for records establishing when and where an object changed hands. Documentation gaps belong in your research notes.
Read the sale terms before evaluating price
Buyers premiums, taxes, export restrictions, shipping, storage deadlines and condition-report limitations can alter the total obligation. The hammer price is not the total cost. Check whether the seller gives any assurances about title and legal transfer, and consult a specialist where laws or cultural patrimony questions apply.
What to save in your research file
Keep screenshots or archived copies of the lot description, condition images, correspondence, estimate, published bibliography and final reported price, with dates. A later owner should be able to retrace how your assessment was made. Separate your own assumptions from statements supplied by the seller.