Missing source information

I started this yesterday but it's nowhere to be found, so I'm asking again.

Found a record through FullText search at FamilySearch (Love that feature). It's here https://www.familysearch.org/ark:/61903/3:1:3Q9M-C3SL-J9FB-S

Normally, I'll go to the front of the film and get the filming information. It's missing on this one. So, I check the information tab, and it's blank. That's more unusual. I enter the film number, 105717890, in the catalogue, and it's not found. That's really strange. 

Now, knowing the record, I can get it from the GLO site (it's at https://glorecords.blm.gov/details/patent/default.aspx?accession=AL3900__.317&docClass=STA ).

But what would happen if I didn't have that backup to find the original? Here's a take on a citation using 10.12 as the template.

Alabama, General Land Office, [unknown title], loose certificates, certificate 29814, William C Parker, 1 December 1859, Lawrence County, Alabama; imaged, [unknown title], FamilySearch (https://www.familysearch.org/ark:/61903/3:1:3Q9M-C3SL-J9FB-S : 28 August 2025), film 105717890 [not in catalogue] > image 316 of 501; citing [unknown].

First layer is the document because the FamilySearch info is so slim.