The negative for this is thin - it was shot hand-held at dusk. I was having a hard time getting a print that wasn't either too flat or too dark. The accepted wisdom for lith is that variable contrast filters aren't used - exposure and development control highlights and contrast. I figured it was worth a try, slapped a 4 into the drawer, and am very happy with the results.
Nice work Lillian. I've always had the same feeling as you about filters and lith, but it's worth (now) knowing that use of a filter might be the difference in making a print work or not.