These appear to be pathological/anatomical museum specimens from a medical college or teaching hospital. Here is what each image shows:

Image 1 — Fetus with thick vernix/macerated fetus A single fetus preserved in formalin, showing heavy vernix caseosa or maceration changes. The thick white-grey coating over the head suggests intrauterine death with maceration (skin slippage). This is a typical museum specimen demonstrating intrauterine fetal death (IUFD) with maceration.

Image 2 — Twin fetuses with placenta Two well-preserved fetuses (likely diamniotic dichorionic or monochorionic twins) preserved together with their shared placenta visible on the right side. The umbilical cords are tied together with string for preservation positioning. This specimen illustrates twin pregnancy and the shared placental mass.

Image 3 — Container with white crystalline substance A plastic container with a red lid containing a white granular/crystalline material — this is almost certainly calcium gluconate or more likely formalin fixative salt / preservative crystals (e.g., calcium carbonate or silica gel used as a desiccant, or formalin-fixed tissue salt precipitate). In a pathology lab context, this is likely formalin fixative powder/salt or a decalcification agent.

Image 4 — Uterus with hydatidiform mole A bisected uterus opened to reveal a mass of grape-like vesicles filling the uterine cavity — the classic appearance of a Complete Hydatidiform Mole (CHM). The lobulated, hydropic (water-filled) vesicular tissue filling and distending the uterine cavity is pathognomonic. This is one of the gestational trophoblastic diseases.

Image 5 — IUD in Placenta (labeled) The label clearly reads "IUD IN PLACENTA." This specimen shows a uterus/placenta with an intrauterine device embedded within it — a rare but recognized complication where an IUD fails as a contraceptive, pregnancy occurs, and the IUD becomes incorporated into the placental tissue. The round white bulging structure is the gestational sac/placenta with the IUD embedded within.

Image 6 — Early fetus/embryo in bottle A small glass bottle (museum jar with gauze stopper) containing what appears to be a very early-stage fetus or abortus preserved in formalin. The cloudy/turbid preservative and small size suggest this is a first-trimester abortion specimen or early pregnancy product of conception.

Image 7 — Fibroid uterus A formalin-preserved uterus with multiple uterine fibroids (leiomyomas). The specimen shows a markedly enlarged uterus with lobulated, firm-appearing masses — the classic gross pathology of uterine leiomyomatosis. The pink-tan whorled masses are characteristic of fibroids.

These are standard obstetrics & gynecology pathology museum specimens used in medical education.