Probably a bit later than 1934 as the electric guitar had only just been invented then.
The guitar on the right is a normal guitar, the one in the middle is a "lap steel" guitar - so called because it's played on the lap with a metal bar called a steel (duh....!). The one on the left may be a Hawaian guitar - also played on the lap with a steel - but it's not possible to tell from the photo.