These are gorgeous tomatoes, these types are so hard to find in good condition and many are diseased. These tomatoes if you turn them over, they have the typical problem of scarring, namely cat-face. This term that describes the puckering, scarring, and deformation and tomatoes.
You can recognize cat facing in tomatoes by the scarred indentations found on the blossom end of the fruit. Sometimes this scarring extends deep into the fruit cavity, making much of the fruit inedible. Some cultivars and varieties, including many heirlooms, are more susceptible to cat-facing, and thee heirloom are delicate.
The causes are wide differences in day and night temperatures. Cat-face may be caused by abnormally cool or hot weather, or any disturbance to flower parts during blossoming. Insect damage, poor pollination, and environmental factors all cause cat facing.
The most common cause of cat facing in tomatoes is pollination, exposure to temperatures below 10°C during flowering and fruit set. Low temperatures inhibit pollination and cause the blossom to stick to the developing fruit. Both of these factors prevent certain parts of the fruit from developing. The undesirable scarring and indentation occurs when unaffected parts of the fruit continue to expand.
Tomatoes that develop during warm weather do not usually experience cat facing problems. However, evidence suggests that even when temperatures are warm, excessive soil nitrogen, exposure to the pesticide, and erratic soil moisture can cause cat facing.
If your favorite varieties are susceptible either protect your transplants with cloches in cold weather or wait until day and evening temperatures are consistently warm to plant them.
Despite this issue they are superb and have excellent taste and fruit and Cat-faced tomatoes are safe to eat; simply cut away the scarred areas.