An acquaintance has a 1917 D obv walker xf40 pcgs that is really nice for the grade. Do you guys have any ball park number for a fair price?
I'd highly recommend creating a Heritage Account. It's free and there is a wealth of information there. I see that the last PCGS XF 40 Obv Mintmark sold for $282 in 2017. An XF 45 (probably negative eye appeal) sold for $264 in 2018. An AU 53 (NGC) sold for $336 May 14, 2019 (more recent sale of something similar). Currently the greysheet number is $225 for XF 40 (also shown on Heritage). You can look through the various examples and add in eBay sales to get a decent idea of the going rate.
I hope to get closer to completing the set when I go the ANA show in August. The Early Walker dates are hard to find in semi decent condition.
I am not sure about the XF 40. The reverse seems a solid VF+ but the obverse is less. (30/15) I might be closer to 20-25 on this.