Facebook Marketplace OfferUp let-go places like that
Ok now we are getting somewhere. Altec Lansing is highly thought of and sought after in the vintage speaker community, fwiw Lansing went on to create a company called JBL, also highly thought of and sought after in the vintage speaker community, the L being Lansing J & B being first and middle initial.
Heath was an electronics company that at some point had an agreement with Altec Lansing to have AL supply them with the parts for their speaker cabinets possibly kits. Which is why it says what it says on the horn and the driver.
See links below for a general idea, I'm not saying these are exact just a very close proximity.
https://audiokarma.org/forums/index.php?threads/heathkit-as-101s-300-cali.655868/
https://www.radiomuseum.org/r/heath_speaker_as_101.html
We have a dedicated section here at AK devoted to all things Altec, Lansing, JBL etc and is a great resource of info. If you do stop by just don't ask for value.
https://www.audiokarma.org/forums/index.php?forums/the-lansing-legacy.212/
So selling locally your best bet would be to hope that there is someone in the greater Portland area looking for parts to complete their set, maybe someone who is good with woodworking and looking to build a cabinet for a mono set up. Make sure you are upfront about if they have been tested or not a little honest goes a long way as opposed saying they work without them having been tested.
I would suggest researching the model #'s, tons of info here, online, especially at the lansingheritage site. Then check out completed sales on ebay being sure to factor out the shipping costs and then price them about 15% to 17% less then what you would see them go for on eBay.
I hope this helps, one last thing maybe message one of the moderators and ask them to change the title of your thread indicating something like "Altec Lansing speaker value" as opposed to inquiry. You'll probably get a lot more replies and knowing me more knowledgeable ones.